Berean Standard Bible (BSB)
He did not need any testimony about man, for He knew what was in a man.
World English Bible (WEB)
and because he didn’t need for anyone to testify concerning man; for he himself knew what was in man.
Strong's King James
And{G2532}{G3754} needed{G5532}{G2192}{(G5707)} not{G3756} that{G2443} any{G5100} should testify{G3140}{(G5661)} of{G4012} man{G444}: for{G1063} he{G846} knew{G1097}{(G5707)} what{G5101} was{G2258}{(G5713)} in{G1722} man{G444}.
The F.O.G *
(25) That it wasn't necessary for Him to have anyone testify about mankind, because He knew what was in mankind.
The F.O.G Message *
Young's Literal Translation
and because he had no need that any should testify concerning man, for he himself was knowing what was in man.